Wash. Rev. Code » Title 46 · Chapter 46.61
Revised Code of Washington

Wash. Rev. Code § 46.61.150 (2026)

Driving on divided highways

✓ current as of May 2026
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Whenever any highway has been divided into two or more roadways by leaving an intervening space or by a physical barrier or clearly indicated dividing section or by a median island not less than eighteen inches wide formed either by solid yellow pavement markings or by a yellow crosshatching between two solid yellow lines so installed as to control vehicular traffic, every vehicle shall be driven only upon the right-hand roadway unless directed or permitted to use another roadway by official traffic-control devices or police officers. No vehicle shall be driven over, across or within any such dividing space, barrier or section, or median island, except through an opening in such physical barrier or dividing section or space or median island, or at a crossover or intersection established by public authority.
[ 1972 ex.s. c 33 s 4; 1965 ex.s. c 155 s 25.]

Notes:

Rules of court: Monetary penalty schedule—IRLJ 6.2.
Notes of Decisions
Cited in 4 cases, 1970–2007 · leading case: State v. Nichols, 161 Wash. 2d 1 (Wash. 2007).
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State v. Nichols, 161 Wash. 2d 1 (Wash. 2007). · cites it 2× “Instead, the State relies on RCW 46.61.150, which prohibits, among other things, driving across solid double yellow lines that contain cross-hatching where a highway (defined as public ways maintained for vehicular traffic, RCW 46.”
State v. Nichols, 162 P.3d 1122 (Wash. 2007). · cites it 2× “Instead, the State relies on RCW 46.61.150, which prohibits, among other things, driving across solid double yellow lines that contain cross-hatching where a highway (defined as public ways maintained for vehicular traffic, RCW 46.”
Derheim v. N. Fiorito Co., 492 P.2d 1030 (Wash. 1972). · cites it 2× “305(2)); and that one intending to turn from a 2-lane 1-way roadway must approach the intended point of left turn in the extreme left-hand lane (RCW 46.”
Nance v. Metro. Transit Corp., 473 P.2d 207 (Wash. Ct. App. 1970). “020 (now RCW 46.61.150), and striking the plaintiff who was properly proceeding in the eastbound lane.”
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